prompt model change

app.py

@@ -40,13 +40,17 @@ chat_model = T5ForConditionalGeneration.from_pretrained("google/flan-t5-base")
 
 def explain_recycling(class_label):
     prompt = f"""
-    Give short recycling instructions for the item {class_label}."""
+    Give short recycling instructions for the item {class_label}.
+    Rules:
+    - NEVER repeat any sentence.
+    - NEVER restate the same phrase more than once."""
     inputs = tokenizer(prompt, return_tensors="pt").input_ids
 
     outputs = chat_model.generate(
         inputs,
-        max_length=180,
-        do_sample=False
+        max_length=80,
+        do_sample=False,  
+        repetition_penalty=2.0,  
     )
 
     return tokenizer.decode(outputs[0], skip_special_tokens=True)